Double Teamed with every Drowning Doom unit

Won a stage battle by yourself against the AI without attacking

Jumped over a Hextadon in the Deuce

Completed all hunting secondary missions

Freed all 120 Bound Serpents

Unlock all songs in the Mouth of Metal

Completed Campaign mode on Normal

Double Teamed with every Ironheade unit

Completed "Dry Ice, Wet Graves"

Acquired 3,000 Fire Tributes

Summoned all Motor Forges

Gained 5 or more seconds of hang time in a single jump - any mode

Personally smoted 300 enemies - any mode